Improvement in thrashing-machines



(11591.) 4 l e Y 41.8. KELLER 8L l. L. STONER.

Improvement in'Threshing Machines. No."122,26, Patented 1an. 16, 1872.

Witnesses.

UNITED STATES PATENT OFFICE.

JACOB S. KELLER AD ISAAC L. STONER, OF EPHRATA TOWNSHIP, PA.

g IMPROVEMENT IN THRASHING-MACHINES.

Specification forming part of Letters Patent No. 122,726, dated January16, 1872.

WE, J AcoB S. KELLER and IsAAc L. SToNER, of the township of Ephrata, inthe county of Lancaster and State of Pennsylvania, have invented certainImprovements in Combined ThrashingMachines and Separators, of which thefollowing is a specification:

Our invention has for its object the arrangement of two fans so that oneis directly under the spiked cylinder andthe other over it to expel thecha first. and to carry the white heads and grain up by side elevatorslinto a hopper, and subjected to a blast and shaking process so arrangedas to separate the whiteheads or unthrashed ears of grain, and by simplegravity to convey them to the thrashingcylinder, while the broken grainsand other impurities are again separated from the full grains and eachkind conveyed outside of the machine directly into bags suspended to thespouts for the purpose to receive the same.

The accompanying drawing illustrates our arrangement, in which Figure lis a side view of the machine, showing the straps, pulleys, elevators,and appliances. Fig. 2 is a rear view of the same. Fig. 3 shows the sideopposite to that shown.by Fig. 1, to show the trough and outside spouts.Fig. 4 is an elevation or plan of the interior arrangement of themachine.

The same letters refer to the same parts in the drawing.

The arrangement of the fans G and I in relation to the spiked cylinder Hcentrally between them is shown. The straw is conveyed `up by a carrier,not shown in the drawing,

passing through the partition S and 9, Fig. 4:, the grain, chaff, andwhite-heads passing down over 7 onto the sieve, and screenei 5lsubjected to a blast from the fan I. The chaff is blown out under 9 andthe straw-carrier. The whiteheads and grains find their way to thebottom of the elevators D by means of an inclined trough or ordinaryconveyer. elevator-cups carry them up to the top of the machine by aspout, E. The grain and heads are discharged into a hopper, F, fromwhich they fall, through a trap opening to the rear,

onto a sieve or shoe, l, which receives a horizontal shaking motioncrosswise, by means of an elbowed connection, a, with the shakingrod N,which latter is held by a pivot, central- The ordinary ly inv W. Thelower end of this rod N is connected with the lower shoe or sieves lc 5,which are actuated lengthwise by means of au eccentric (around the shaftofthe fan I) and its eX- tended arm Y. This shaking discharges theunthrashed ears over the hind end of l into an inclined trough, Q. rThistrough leads to the side trough or spout P, being detached, however, soas to have the swing with the shoe, with which it is connected. Thesmaller or broken grain and the cockle or the like fall through sieve orscreen 2 on the inclined board 3, from which it falls into the rear ofchamber X or spout S, while the full grains drop over the sieve 2 intothe front of said chamber Xor spout T, while at the same time thematerials are being separated they are subjected to the blast of theupper fan G to blow off all chaff or dust that may have become detachedor not thoroughly removed by the lower fan I. The separated ears orwhite-heads pass down the inclined plane or trough P, and are returnedto the cylinder H for being again subjected to the thrashing process.Thus all the grains will be thoroughly thrashed out. The double orpartitioned spout from X may be carried to one side of the machine andbranched off into separate spouts S T, or from the center carried toboth sides of the machine and branched in like mannner. To the mouth ofthese branches bags may be suspended to receive the full and perfectgrains of wheat, and the broken or impure portions in separate bags. Theupper shoe is suspended on hangers R R attached to top cross-piece, soas to allow it to swing from side to side. There is a slide-door, f, forclosing the trap-opening in the hopper, in order to stop off in time toprevent the material passing through after the blast is slackened, whenabout stopping the machine. The slides M are to regulate the amount ofdraught to the fans in the ordinary manner.

The straw-conveyer experimented with was one of the ordinary kind. Wecontemplate an improvement not yet thoroughlyftested, but it forms nopart of this application.

We are aware that there is no novelty in the use of two fans and doubleshoes, norin elevators independently considered; nor do we claim suchapart from our arrangement of the combined action or process. We arenotaware of elevators being used to convey the grain and White-heads into ahopper for the purpose oi' making three distinct separations in such amanner as to return the unthrashed ears to the action of the spikedcylinder by means of a simple trough-connection, and to collect in bagsthe separation of grain in the manner shown.

What We deem to be novel is the trough Q on the rear of the upper shoe,in combination with the side trough P, as also the partitioned chamber Xor double-spout connection S T; the arrangement of the eccentric andconnection Y with the lower shoe and rocking-shaft or lever N to theupper shoe and elbowed lever N, to produce a twofold motion in therespective shoes, so that one is moved from side to side crosswise andthe other lengthwise. Therefore,

Witnesses G. ALBERT KEMPER,

J AooB KEMPER. (159)

